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=========================================================== 
Ubuntu Security Notice USN-459-2               May 21, 2007
pptpd vulnerabilities
https://launchpad.net/bugs/115448
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 6.06 LTS

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 6.06 LTS:
  bcrelay                                  1.2.3-1ubuntu0.2
  pptpd                                    1.2.3-1ubuntu0.2

In general, a standard system upgrade is sufficient to effect the
necessary changes.

Details follow:

USN-459-1 fixed vulnerabilities in pptpd.  However, a portion of the fix 
caused a regression in session establishment under Dapper for certain 
PPTP clients.  This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

 A flaw was discovered in the PPTP tunnel server. Remote attackers could 
 send a specially crafted packet and disrupt established PPTP tunnels, 
 leading to a denial of service.


Updated packages for Ubuntu 6.06 LTS:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/pptpd_1.2.3-1ubuntu0.2.diff.gz
      Size/MD5:     9454 2d77f7325b22f11bc934caae910d6235
    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/pptpd_1.2.3-1ubuntu0.2.dsc
      Size/MD5:      597 99180d1dd8b3fb5d18f200bcec669beb
    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/pptpd_1.2.3.orig.tar.gz
      Size/MD5:   185721 a521e40ca304b0c125cc25f9b9d03324

  amd64 architecture (Athlon64, Opteron, EM64T Xeon)

    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/bcrelay_1.2.3-1ubuntu0.2_amd64.deb
      Size/MD5:    20470 3f21f2728e3ea23ee38316f5441d6d8d
    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/pptpd_1.2.3-1ubuntu0.2_amd64.deb
      Size/MD5:    56676 b87a21300d9010e1a4bd38dfcc72963d

  i386 architecture (x86 compatible Intel/AMD)

    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/bcrelay_1.2.3-1ubuntu0.2_i386.deb
      Size/MD5:    19702 79dec9218e4c44ce9ab75ceb609494ff
    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/pptpd_1.2.3-1ubuntu0.2_i386.deb
      Size/MD5:    54228 0801f14c705396544b024417a9edd53a

  powerpc architecture (Apple Macintosh G3/G4/G5)

    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/bcrelay_1.2.3-1ubuntu0.2_powerpc.deb
      Size/MD5:    20368 d2e318aa804d06c3a9fa84f17d0a582c
    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/pptpd_1.2.3-1ubuntu0.2_powerpc.deb
      Size/MD5:    58308 52095cfefa517a7e6fa22bdf4d6a148e

  sparc architecture (Sun SPARC/UltraSPARC)

    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/bcrelay_1.2.3-1ubuntu0.2_sparc.deb
      Size/MD5:    20142 61d2f4e9a005ab87646006fc12fe9d72
    http://security.ubuntu.com/ubuntu/pool/main/p/pptpd/pptpd_1.2.3-1ubuntu0.2_sparc.deb
      Size/MD5:    54602 d6ff36cf5d38e0c453941f89559b09f2

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